George Watts married Henrietta Mackinnon in St Mary Arches Church on 35th June 1798. George wasa Veterinary Surgeon with the Dragoon Guards and Henrietta was described as of Parish of St Olave. She was a member of the Mackinnon of the Mackinnon clan of Scotland and I understand there is aemorial to her brother in St Paul's Cathedral in London. George went on to have a successful career in Ireland and Britain as a veterinary surgeon and as a breeder, trainer and owner of racehorses. However I have been unable to find out where he wa originally from. I know he had a brother John who also spent some time in ireland as a vet but he returned to England before George died in 1858.
Hope somebody can suggest a line of research.